LM324FVJ-E2 - 4-Channel 3-32V Op Amp | ROHM
MPN: LM324FVJ-E2 ✗ סוף ייצורLM324FVJ-E2 סקירה
An operational amplifier is an analog integrated circuit that compares two input voltages and amplifies their difference. A ground-sense operational amplifier is designed to minimize errors caused by ground currents, especially when the input signal is close to the amplifier supply ground. Within the broader hierarchy, this component is a four-channel general-purpose operational amplifier, placing it among linear amplifiers and analog signal-conditioning ICs. Integrating four amplifiers into one package can reduce board area and simplify multi-channel instrumentation layouts.
The principal documented features of the LM324FVJ-E2 are its four amplifier circuits, 3 V to 32 V operating-supply range, general-purpose classification, and 14-TSSOP-BJ surface-mount package. The ground-sense configuration is particularly relevant to sensor interfaces, transducer monitoring, and analog measurement systems where the signal source may sit near ground potential. Because the device is not recommended for new designs, engineers should verify current availability, environmental requirements, and any redesign requirements through the Request a Quote form before committing a new production release.
Architecturally, the part combines four amplifiers in one multi-channel package. The wide 3 V to 32 V listed supply range allows operation from conventional low-voltage rails through substantially higher industrial-style rails, provided the circuit remains within every absolute-maximum and operating condition listed in the manufacturer documentation. Ground-sense behavior should be evaluated with the actual source impedance, return-current path, signal bandwidth, and bypass network because PCB grounding errors can dominate the useful accuracy of the measurement chain.
Typical uses include four-channel sensor conditioning, low-level analog measurement, industrial control interfaces, instrumentation buffering, and signal amplification referenced to an analog ground. In these applications, the four channels can process related inputs or provide independent gain stages. The common 14-TSSOP-BJ package also allows routing and assembly practices compatible with other fine-pitch surface-mount operational amplifiers, provided designers verify the pinout and land pattern rather than relying only on package dimensions.
For robust implementation, place input and supply bypass capacitors close to their associated pins, keep sensitive input traces short, and return amplifier ground currents through a path that avoids high-current load currents. The main engineering tradeoff is lifecycle suitability: the LM324FVJ-E2 offers a familiar ground-sense quad-amplifier format but is marked Not Recommended for New Designs, so a new design should weigh continuity against the use of a currently recommended amplifier family.
חלופות תחליף ישיר עבור LM324FVJ-E2 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
LMR324FVJ-E2
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
LM324FVJ-E2 דירוגים מרביים ומאפיינים חשמליים
| Amplifier Type | General-purpose operational amplifier |
| Number of Amplifier Circuits | 4 circuits |
| Supply Voltage Range | 3 V to 32 V |
| Input Architecture | Ground-sense input |
| מארז | 14-TSSOP-BJ |
| סוג הרכבה | Surface mount |
| Lifecycle Recommendation | Not Recommended for New Designs |
| Design Diversion | Not recommended |
מדריך תצורת פינים של LM324FVJ-E2 14-tssop-bj
תצורת פינים עבור LM324FVJ-E2 (מארזת 14-tssop-bj). רכיב אנלוגי זה כולל פיני כניסה, יציאה ואספקת מתח. יש לעיין בגיליון הנתונים של היצרן לתצורות פיני איפוס היסט, פיצוי והפעלה. אידיאלי למעגלי עיצוב אותות ומגברים.
אין נתוני פריסת פינים מפורטים עבור LM324FVJ-E2.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
LM324FVJ-E2 מתאים עבור 6 יישוםs: Multi-Sensor Signal Conditioning, Industrial Control Interfaces, Precision Measurement Buffering, Audio and Communications Front Ends, Test and Measurement Equipment, Low-Voltage Embedded Analog Circuits.
Multi-Sensor Signal Conditioning
The LM324FVJ-E2 fits four-channel sensor signal-conditioning systems where several low-level inputs must be amplified relative to a nearby analog ground. Its four amplifier circuits provide a compact way to process related sensors, while the ground-sense architecture helps reduce ground-offset errors in measurements taken close to ground potential. The listed 3 V to 32 V supply range supports both conventional low-voltage electronics and higher-voltage instrumentation rails. Each channel should still be assessed for input common-mode range, output swing, bandwidth, and stability. Because the device is Not Recommended for New Designs, it is most appropriate for maintaining an existing validated instrumentation platform rather than starting an unrestricted new design.
מומלץ
Industrial Control Interfaces
The LM324FVJ-E2 can support industrial control interface circuits that compare low-level command or feedback signals against references. Its four internal general-purpose amplifier channels allow a single package to implement several signal paths, reducing component count and simplifying routing in compact controller boards. The 3 V to 32 V supply capability is useful when the interface electronics share a higher control-rail domain. Ground-sense operation is beneficial when measured signals originate near the analog ground plane, although actual offset and noise performance must be taken from the manufacturer datasheet. The part should be used in new control products only after lifecycle, quality, and environmental requirements receive explicit approval.
מומלץ
Precision Measurement Buffering
The LM324FVJ-E2 is applicable to buffering and amplification stages in precision measurement systems where the source signal is referenced close to ground. Its ground-sense design targets common measurement errors associated with ground-current and return-path effects, while four channels support several buffered inputs within one package. The 14-TSSOP-BJ footprint assists compact analog layouts, but layout quality remains critical: sensitive input paths should be short, shielded from switching currents, and referenced to a carefully managed analog ground. Designers must verify offset voltage, input bias current, common-mode range, output capability, and noise against the required measurement accuracy. The NRND status favors continuity of established equipment over new platform creation.
מומלץ
Audio and Communications Front Ends
The LM324FVJ-E2 can be evaluated for low-level audio or communications front ends that require multiple general-purpose amplifier stages and a ground-reference input topology. Four channels provide flexibility for preamplification, filtering, level conditioning, or line-level signal handling within a compact board. Its 3 V to 32 V listed operating range permits operation from low-voltage portable-style rails through higher-voltage equipment rails. Signal fidelity, however, depends on parameters not summarized in the distributor catalog, including noise, bandwidth, slew rate, output swing, and channel-to-channel behavior. Those limits must be checked in the ROHM datasheet, and the grounding strategy must prevent return currents from entering sensitive input references. Existing compatible designs can use the part for lifecycle continuity with appropriate approval.
מומלץ
Test and Measurement Equipment
The LM324FVJ-E2 is suitable for legacy test and measurement equipment requiring several general-purpose analog channels in one package. Typical uses include amplifying low-level detector outputs, buffering instrument inputs, and providing gain stages around externally referenced signals. The ground-sense characteristic is advantageous when test fixtures contain ground offsets or when long signal returns create potential differences, although fixture grounding still requires careful design. The listed 3 V to 32 V range allows use across multiple supply domains within permitted operating limits. Because the component is Not Recommended for New Designs, engineers should preserve it for repair and continuation of proven platforms, then assess a currently recommended amplifier when creating new instrumentation. Input and output loading must be checked against the complete datasheet.
מומלץ
Low-Voltage Embedded Analog Circuits
The LM324FVJ-E2 can be used in embedded analog subsystems that need general-purpose amplification within a 3 V to 32 V capable supply environment. Four channels are useful for transducer conditioning, threshold monitoring, error amplification, and auxiliary signal processing around a controller. Its surface-mount 14-TSSOP-BJ package supports automated assembly and compact board construction, but pin-level verification is mandatory because package type alone does not guarantee electrical equivalence between amplifier families. Designers should verify supply sequencing, input common-mode limits, capacitive-load stability, output swing, and shutdown needs. The device's lifecycle designation makes it most practical in equipment already designed around this exact amplifier, where replacing it would require unnecessary circuit and qualification work.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור LM324FVJ-E2 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | LMR324FVJ-E2 |
|---|---|---|
| Brand | ROHM Semiconductor | ROHM Semiconductor |
| Package | 14-TSSOP-BJ | 14-TSSOP-BJ |
| Number of Amplifier Circuits | 4 circuits | 4 circuits |
| Amplifier Classification | Standard general-purpose amplifier | Standard general-purpose amplifier |
| Input Architecture | Ground sense | Ground sense |
| Rail-to-Rail Characteristics | Not identified as rail-to-rail in the manufacturer product listing | Rail-to-rail |
מבדילים עיקריים
- Established ground-sense architecture for low-level analog measurement (לעומתLMR324FVJ-E2)
- Four independent amplifier circuits in one compact package (לעומתLMR324FVJ-E2)
- Wide listed operating-supply capability (לעומתLMR324FVJ-E2)
- Suitability for maintaining validated legacy equipment (לעומתLMR324FVJ-E2)
הערות תכנון
Route each amplifier input directly to its source with short traces, avoid sharing narrow segments with feedback networks, and keep the analog return path separate from switching or high-current returns. Ground-sense operation is only effective when the complete signal and return paths are controlled; otherwise, copper resistance and shared ground current can introduce more error than the amplifier itself.
Use the 14-TSSOP-BJ land pattern from the package drawing and verify every pin assignment against the ROHM pin-description table before PCB release. Treat all four channels independently, placing any input and output bypass components close to the relevant package pins. Confirm the exposed-pad or thermal requirements for the exact package construction before assigning copper area and soldering parameters.
Do not treat the 3 V to 32 V supply capability as permission to use the amplifier outside its complete electrical limits. Check input common-mode voltage, output swing, absolute maximum ratings, and stability with the actual source impedance and load. Also check whether the circuit requires shutdown or rail-to-rail behavior; the LMR324FVJ-E2 has different rail-to-rail characteristics and should not be substituted without a full electrical review.
Confirm supply-current demand and total package dissipation for all four active channels at the highest expected operating temperature. Decouple supply pins locally and avoid sharing high-current return paths beneath sensitive analog circuitry. Because the operating range permits substantially different supply voltages, thermal and electrical margins must be recalculated for every rail combination rather than inferred from the 3 V to 32 V headline specification alone.
מידע על תאימות
ROHM identifies the LM324FVJ as Not Recommended for New Designs. No specific RoHS, REACH, lead-free, halogen-free, or conflict-minerals statement was present in the cited product-page and distributor summaries.
